Steel wire rope fatigue testing machine
By designing a wire rope fatigue testing machine that includes a frame, a wire fixing seat, a wire clamping seat, and a crank-slider mechanism, the problems of low efficiency and unstable clamping of existing equipment are solved, and stable and efficient testing results are achieved.
Patent Information
- Application Number
- CN202520342659.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Existing wire rope fatigue testing equipment is inefficient, has a complex structure, high maintenance costs, and the wire rope ends are not securely clamped during the test, affecting the test results.
A wire rope fatigue testing machine was designed, comprising a frame, a wire fixing seat, a wire clamping seat, a crank-slider mechanism, and a winding reel. The wire rope is fixed with bolts, and the crank-slider mechanism driven by a motor achieves periodic stress changes in the wire rope. Combined with the counterweight and winding reel structure, the machine ensures stable clamping of the wire rope and high testing efficiency.
The structure for wire rope fatigue testing is simple, the maintenance cost is low, and the test results are stable. The wire rope end clamping is more secure, convenient, and efficient.
Smart Images
Figure CN223910696U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of steel wire rope fatigue testing machines. BACKGROUND
[0002] Fatigue strength refers to the maximum stress of material under infinite alternating load without failure, called fatigue strength or fatigue limit. In fact, metal material cannot be tested under infinite alternating load. The stress of mechanical parts at each point changes periodically with time during work, and this stress that changes periodically with time is called alternating stress (also called cyclic stress). Under the action of alternating stress, although the stress of the part is lower than the yield point of the material, cracks or sudden complete rupture occur after a long time of work, which is called metal fatigue.
[0003] And in the production process of rope saw, steel wire rope is one of the indispensable materials to form rope saw, and the fatigue strength of the steel wire rope needs to be tested in advance before assembly. The fatigue testing machine currently used in the market tests one group of steel wire ropes at a time, which is low in efficiency and complex in structure, and the equipment cost and subsequent maintenance cost are very high. At the same time, due to the large stress on the steel wire rope during testing, if the end is not clamped stably, it will easily come loose during testing, affecting the testing effect. UTILITY MODEL CONTENT
[0004] In view of the deficiencies of the prior art, the technical problem to be solved by the utility model is to provide a steel wire rope fatigue testing machine, which is not only reasonable in structure, but also stable and fast.
[0005] In order to solve the above technical problems, the technical scheme of the utility model is as follows: a steel wire rope fatigue testing machine, comprising a rack, a wire fixing seat vertically slidingly connected on the rack, two oppositely arranged wire clamping seats provided on the wire fixing seat, a plurality of wire fixing blocks protruding at intervals on the opposite sides of the two wire clamping seats, and the wire fixing blocks on the two wire clamping seats are arranged in staggered manner to clamp the steel wire rope, wherein the back side of one wire clamping seat is slidingly connected with a fixed block through a guide rod, a bolt is screwed on the fixed seat, and the end of the bolt abuts on the wire clamping seat, the wire fixing seat is driven to reciprocally slide on the rack through a crank slider mechanism, and the other end of the steel wire rope is sequentially wound around a plurality of wire reels and hung with a counterweight at the end.
[0006] Further, the fixed block and the wire clamping seat away from the fixed block are fixedly connected to the wire fixing seat, and a guide hole is formed in the fixed block for inserting the guide rod to horizontally slide the wire fixing block.
[0007] Further, the fixed block and the wire clamping seat away from the fixed block are fixedly connected to the wire fixing seat, and a vertically downward extending extension plate is fixedly connected to the wire fixing seat below the fixed block and the wire clamping seat, and the lower end of the extension plate is connected with the crank slider mechanism.
[0008] Further, the crank slider mechanism comprises a connecting rod hingedly connected at two ends to the extension plate and the lower disc respectively, the lower end of the connecting rod is hingedly connected to the side of the near edge of the disc, and the center of the disc is driven to rotate by the motor.
[0009] Further, the inner end of the fixed wire seat is slidably connected through two vertically arranged guide columns, the upper and lower ends of the guide columns are fixedly connected to the bottom plate, and the bottom plate is fixedly connected to the rack.
[0010] Further, the rack is fixedly connected with a horizontal frame for mounting the wire winding disc, three groups of wire winding discs are sequentially rotationally connected to the horizontal frame, and a long groove is formed in the rack for the rotation of the wire winding disc.
[0011] Further, the rack is fixedly connected with a horizontal frame for mounting the wire winding disc, three groups of wire winding discs are sequentially rotationally connected to the horizontal frame, and a long groove is formed in the rack for the rotation of the wire winding disc.
[0012] Further, the counterweight guide wheel, the wire guide disc and the wire winding disc are rotationally connected to the rack or the horizontal frame through the hinged seat, and a position-providing groove is formed in the horizontal frame for the rotation of the counterweight guide wheel.
[0013] Compared with the prior art, the steel wire rope fatigue testing device has the following beneficial effects: simple structure, low maintenance cost of the equipment, stable testing effect, and stable clamping of the end of the steel wire rope.
[0014] The utility model will be further explained in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a structural schematic view of the embodiment of the utility model;
[0016] Figure 2 It is Figure 1 It is an enlarged schematic view of A in the middle;
[0017] Figure 3 It is a top view schematic view of the embodiment of the utility model.
[0018] In the figure: 1-rack, 2-fixed wire seat, 3-wire clamping seat, 4-fixed wire block, 5-steel wire rope, 6-guide rod, 7-fixing block, 8-bolt, 9-crank slider mechanism, 10-wire winding disc, 11-counterweight block, 12-guide hole, 13-extension plate, 14-connecting rod, 15-guide column, 16-bottom plate, 17-horizontal frame, 18-long groove, 19-wire guide disc, 20-counterweight guide wheel, 21-annular groove, 22-position-providing groove, 23-disc, 24-motor, 25-hinged seat. DETAILED DESCRIPTION
[0019] To make the above-mentioned features and advantages of this utility model more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings for detailed explanation.
[0020] like Figures 1-3 As shown, a wire rope fatigue testing machine includes a frame 1, on which a wire fixing seat 2 is vertically slidably connected. Two opposing wire clamping seats 3 are provided on the wire fixing seat. Several wire fixing blocks 4 protrude from the opposite sides of the two wire clamping seats at intervals, and the wire clamping blocks on the two wire clamping seats are staggered to clamp the wire rope 5. The back side of one wire clamping seat is slidably connected to a fixing block 7 via a guide rod 6. A bolt 8 is screwed onto the fixing seat, and the end of the bolt abuts against the wire clamping seat to drive its movement. The bottom of the wire fixing seat is driven to slide back and forth on the frame via a crank-slider mechanism 9. The other end of the wire rope is wound around several winding reels 10 in sequence and a counterweight 11 is hung at the end.
[0021] In this embodiment of the utility model, the fixing block and the wire clamping seat on the side away from the fixing block are both fixedly connected to the wire clamping seat. The fixing block is provided with a guide hole 12 for inserting a guide rod to slide the wire clamping block horizontally.
[0022] In this embodiment of the utility model, the fixing block and the wire fixing seat on the lower side of the wire clamping seat are fixedly connected to a vertically extending extension plate 13, and the lower end of the extension plate is connected to the crank slider mechanism.
[0023] In this embodiment of the utility model, the crank-slider mechanism includes a connecting rod 14 with its two ends respectively hinged to the extension plate and the lower disk 23. The lower end of the connecting rod is hinged to the near edge of the disk, and the center of the disk is driven to rotate by a motor 24.
[0024] In this embodiment of the utility model, the inner end of the wire fixing seat is slidably connected by two vertically arranged guide posts 15, and the upper and lower ends of the guide posts are fixedly connected to the base plate 16, which is fixedly connected to the frame.
[0025] In this embodiment of the utility model, a horizontal frame 17 for mounting winding reels is fixedly connected to the side of the frame. Three sets of winding reels are rotatably connected on the horizontal frame. The frame is provided with a long groove 18 for the winding reels to rotate and make room. The wire rope passes around the top of the guide reel in sequence, then passes down to the bottom of the nearest winding reel, then passes around the top of the middle winding reel and the bottom of the last set of winding reels in sequence, then passes up to the top of the counterweight guide wheel and extends downward to connect to the counterweight block.
[0026] In this embodiment of the utility model, a wire guide 19 is mounted on the top of the frame and rotatably connected thereto, and a counterweight guide wheel 20 is mounted on the side of the horizontal frame away from the frame and rotatably connected thereto. The counterweight guide wheel, the wire guide 19, and the winding 19 are all provided with annular grooves 21 that are recessed inward along their outer periphery to facilitate the winding of the wire rope.
[0027] In the embodiment of the utility model, the counterweight guide wheel, the wire guide disc and the winding disc are all rotatably connected to the rack or the horizontal frame through the hinge seat 25, and the horizontal frame is provided with a let -go slot 22 for the counterweight guide wheel to rotate.
[0028] The working principle of the embodiment of the utility model is as follows: during testing, one end of the steel wire rope is inserted between the two wire clamping seats and screwed through the bolt, one of the wire clamping seats is pushed towards the other wire clamping seat, and the steel wire rope is fixed through the wire fixing block, the other end of the steel wire rope is sequentially wound around the wire guide disc, the three winding discs and the counterweight guide wheel, and finally vertically hangs down to connect with the counterweight block to make the steel wire rope tight, after installation, the motor can be started, the motor drives the disc to rotate and then drives the wire fixing seat to vertically reciprocate on the guide column through the connecting rod, so that the winding plate reciprocates to make the stress of the steel wire rope periodically change, and finally the fatigue strength of the steel wire rope can be measured.
[0029] The utility model is not limited to the above-mentioned best implementation, and anyone can derive other various forms of steel wire rope fatigue testing machine under the inspiration of the utility model. Any equivalent change and modification made according to the patent application scope of the utility model should belong to the coverage range of the utility model.
Claims
1. A wire rope fatigue testing machine characterized by: The utility model provides a wire fixing device, including frame, the frame is vertically slidably connected with wire fixing seat, the wire fixing seat is provided with two opposite clamping wire seat, two clamping wire seat opposite side all interval protrude with a plurality of wire fixing block and the wire fixing block on two clamping wire seat all staggered setting to clamp the steel wire rope, one clamping wire seat back side is slidably connected with a fixed block through guide rod, and a bolt is screwed on the fixed block, and the end of the bolt abuts on the clamping wire seat, the wire fixing seat bottom is reciprocatingly slid on the frame through crank slider mechanism, and the other end of the steel wire rope is sequentially wound through a plurality of winding disc and is hung with counterweight at the end.
2. The steel cord fatigue testing machine according to claim 1, characterized in that: The fixed block and the clamping wire seat on the side away from the fixed block are fixedly connected to the wire fixing seat, and a guide hole is formed in the fixed block for inserting the guide rod to horizontally slide the wire fixing block.
3. The steel cord fatigue testing machine according to claim 2, characterized in that: The fixed block and the clamping wire seat on the side away from the fixed block are fixedly connected to the wire fixing seat, and a guide hole is formed in the fixed block for inserting the guide rod to horizontally slide the wire fixing block.
4. The steel cord fatigue testing machine of claim 3, wherein: The crank slider mechanism includes a connecting rod hingedly connected to the extension plate and a lower disc at both ends, the lower end of the connecting rod is hingedly connected to the near edge side of the disc, and the center of the disc is driven to rotate by a motor.
5. The steel cord fatigue testing machine of claim 1, wherein: The inner end of the wire fixing seat is slidably connected through two vertically arranged guide columns, and the upper and lower ends of the guide columns are fixedly connected to the bottom plate, which is fixedly connected to the frame.
6. The steel cord fatigue testing machine of claim 1, wherein: The side of the frame is fixedly connected with a horizontal frame for installing the winding disc, three groups of winding discs are sequentially and rotatably connected to the horizontal frame, and a long slot is formed in the frame for the winding disc to rotate and be positioned.
7. The steel cord fatigue testing machine according to claim 6, characterized in that: The top of the frame is provided with a wire guide disc rotatably connected thereto, and the side of the horizontal frame away from the frame is provided with a counterweight guide pulley rotatably connected thereto, and the counterweight guide pulley, the wire guide disc and the winding disc are all concave inward along the outer periphery to facilitate the steel wire rope to pass through the annular groove.
8. The steel cord fatigue testing machine according to claim 7, characterized in that: The counterweight guide pulley, the wire guide disc and the winding disc are rotatably connected to the frame or the horizontal frame through the hinged seat, and a positioning slot is formed in the horizontal frame for the counterweight guide pulley to rotate and be positioned.